RedBlackTree

Console/src/Main.java

@@ -57,7 +57,7 @@ public class Main {
         }
 
         StringBuilder sb = new StringBuilder();
-        sb.append(root.getData() + root.getColor().toString());
+        sb.append(root.getData()).append(root.getColor().toString());
 
         String pointerRight = "└──";
         String pointerLeft = (root.getRight() != null) ? "├──" : "└──";
@@ -74,7 +74,7 @@ public class Main {
             sb.append("\n");
             sb.append(padding);
             sb.append(pointer);
-            sb.append(node.getData()+node.getColor().toString());
+            sb.append(node.getData()).append(node.getColor().toString());
 
             StringBuilder paddingBuilder = new StringBuilder(padding);
             if (hasRightSibling) {

Console/src/Node.java

@@ -20,10 +20,6 @@ public class Node {
         return  color;
     }
 
-    public void setData(int data) {
-        this.data = data;
-    }
-
     public Node getLeft() {
         return left;
     }

Console/src/RBTree.java

 public class RBTree {
-    private static final NodeRB EMPTY = new NodeRB(0);;
+    private static final NodeRB EMPTY = new NodeRB(0);
     static {
         EMPTY.leftNodeRB = EMPTY;
         EMPTY.rightNodeRB = EMPTY;